Adjustable resilient seat



March 14, 1939. A. FRADERS 2,150,844

ADJUSTABLE RPS [LTENI SEAT Fi-led Aug. 20, 1937 w 5 Sheets-Sheet 1 B Ijizjuz Inventor J. ffladerd M an.

Afiorneys March 14, 1939. A. F. RA'DRs ADJUSTABLE RESIIJIENT SEAT FiledAug. 20, 1937 5 Sheets-Sheet V In venior i ffladaz .4Horneys March 14,1939. A F, RADERS 2,150,844

ADJUSTABLE RESILIENT SEAT Aiiorneys March 14, 1939. A F, RADERSADJUSTABLE RES ILIENT SEAT Filed Aug! 20, 1937 5 Sheets-Sheet 4 Inventor.4 ffprneys March 14, 1939. A RADERS 2,150,844

ADJUSTABLE RESILIENT SEAT Filed Aug. 20, 1937 5 Sheets-Sheet 5 A iiomeysPatented Mar. 14, 1939 UNITED STATES PATENT OFFICE 1 Claim.

This invention relates broadly to seats and more particularly to animproved seat or stool designed and intended particularly for use byengineers and firemen in cabs of railroad loco- 6 motives.

An object of the present invention is to provide a seat of the characterabove mentioned that is both resilient and adjustable Vertically to thedesired height.

The invention together with its objects and advantages will be bestunderstood from a study of the following description taken in connectionwith the accompanying drawings wherein:

Figure 1 is a side elevational View of the seat,

a raised position of the seat being indicated by broken lines.

Figure 2 is a rear elevational view of the seat.

Figure 3 is a sectional view through the seat showing the adjustablesupport therefor.

Figure 4 is a perspective View of a foot rest.

Figure 5 is a perspective view of a cylinder or tube hereinafter morefully referred to.

Figure 6 is a top plan view of the seat proper with the seat cushionremoved.

Figure 7 is a bottom plan view of the seat cushion.

Figure 8 is a perspective view of a floor plate, and

Figure 9 is a perspective view of the vertically shiftable section ofthe seat.

Referring to the drawings by reference numerals it will be seen that inthe preferred embodiment thereof the seat comprises a pair of front andrear floor plates 5 respectively provided at their respective oppositeends with apertures 6 for the reception of screws or similar fasteningdevices through the medium of which the plates 5 are secured to thefloor of a locomotive cab.

Each of the plates 5 have rising therefrom, and

inwardly from the ends thereof, standards 1.

Supported by the standards 1 for vertical sliding movement is a skeletonbox-like frame structure indicated generally by the reference numeral 8.

As shown in Figure 9 the frame structure 8 comprises a plate 9 from thecorners of which rise tubular members II) that have a sliding fit withthe standards or posts I. At their upper ends the tubular members I!)have welded or otherwise secured thereto corner portions of a frame ll.

At the front and rear thereof plate 9 is provided with depending flangesl2 complemental to lugs or flanges l3 that extend upwardly from thefloor plates 5.

For raising and lowering the frame structure 8, and for securing thelatter at the desired elevation, there is provided an adjustable supportconsisting of coacting pairs of toggle links 14 and I 5.

The links 14 are pivoted to the lugs or flanges 5 [2 as at l6 While thelinks I5 are pivoted to the lugs or flanges I3 as at H.

The links I4 and 15 are pivotally connected by pivots I8 and 19.

The pivots l9 are provided on the respective opposite ends of a crossbar 20 while connected to the pivots 18 are the angular ends of a crossbar 2|.

An adjusting screw 22 has a threaded end 23 threadedly engaged with anintermediate portion 15 of the bar 20 and asecond end journaled in asuitable opening provided therefor intermediate the ends of the bar 2|.Screw 22 is secured against longitudinal movement through the medium ofcollars 24 pro-vided thereon at opposite sides of the bar 2 I.

On the collar-equipped end thereof screw 22 is also provided with aratchet wheel 25 and a lever 26 has one end connected with the screw 22to rotate about the latter as an axis. 25

Lever 26 is equipped with a detent structure 21 cooperable with theratchet 25 so that obviously by oscillating the lever 26 movement of thelever through the medium of the detent 27 and rack wheel 25 will betransmitted to the screw 22 30 for turning the latter to cause the bar2| to feed longitudinally of the threaded end of the screw for raisingor lowering, as the case may be, the frame structure 8 and consequentlythe seat proper carried thereby. The seat proper indicated generally bythe reference numeral 28 consists of a plurality, in the presentinstance, three laterally spaced straps 29 which at one end are upturnedas at 30 to provide back rest extensions for supporting an upholsteredback rest Si. 40

The straps 29 are secured in. laterally spaced relation through themedium of front and rear cross straps or bars 32.

The bars 32 are secured to the straps 29 through the medium of the upperends of rods 45 33 that extend through apertures in the members 29 andcross bars 32 that have threaded thereon upper and lower nuts 34, 35.

A cushion for the bottom of the seat is indicated by the referencenumeral 36, and on the 50 underside thereof the cushion 36 is providedwith angular elements 31 as shown in Figure '7 that engage the nuts 34associated with the endmost rods 33 in a manner to secure the cushion 36against lateral displacement. 55

The rods 33 work through openings 38 provided therefor in the front andrear ends of the frame element II and are received in the upper ends oftubes or cylinders 39. Cylinders 39 are secured in vertical position onthe plate 9 at the front and rear edges of the plate through the mediumof bolts and nut means 40.

Adjacent the lower ends thereof the rods 33 are provided with lateralpins 4| that are accommodated in longitudinal slots 42 provided in thetubes or cylinders 39.

Washers 43 have arsliding fit on the tubes or cylinders 39 and areengaged by the pins 4| as clearly shown in Figure 2.

Disposed about the tubes or cylinders 39 are coil springs 44 that attheir lower ends impinge against the plates 9 and at their upper endsimpinge against the washers 43.

I It will thus be seen that a resilient support for the seat 28, inaddition to the adjustable support for the seat, is provided.

Also in accordance with the present invention there is provided afootrest 45 having at the opposite ends thereof rearwardly extendingarms 46. At the free ends thereof arms 46 are pivoted as at 59 to eyesor sleeves 41 sleeved on the front posts or standards 1 whereby the rest45 is mounted for vertical adjustment; .Sleeves'41 are provided withstops 5| to support the foot rest in horizontal position.

At the sleeve-equipped ends thereof arms 46 are provided with laterallyextending lugs 48. Lugs 48 are equipped with threaded apertures. toaccommodate adjusting screws 49, the lower ends of which bear on thefront or forwardmost floor plate 5 at the ends of the latter. It willthus be seen that to raise or lower the foot rest 45 as found desirablescrews 49 are turned causing the lugs 48 to feed vertically thereon andin the proper direction to raise or lower the foot rest 45.

When not used foot rest 45 may be swung upwardly to a substantiallyvertical out-of-the-way position.

From the above it will be seen that I have provided an adjustableresilient seat which may be used wherever a seat of such a character isdesired, and which will especially be found desirable for use in alocomotive cab.

It is thought that a clear understanding of the construction, utilityand advantages of an invention of this character will be had without amore detailed description.

Having thus described the invention what is claimed as new is:

In a seat of the class described, a frame including a lower plate,arectangular-shaped upper member, uprights connecting the plate andmember together, said plate and rectangular-shaped member having a rowof spaced holes adjacent each end thereof, the holes in the plate beingaligned with the holes in the member, tubular members, bolts connectedat the lower ends of the tubular members and passing through the holesin the plate, nuts engaging said bolts for holding the same in the holesof the plate, two rows of vertically arranged rods passing through theholes in the rectangular member and into the tubular members, a strapconnecting the upper end of each rodgof one row with a corresponding rodof the other row, said straps being connected with the upper ends of therods, each tubular member having a longitudinally extending slottherein, a pin carried by each rod and engaging the slot therein, awasher slidably arranged on each tubular member located under the pinand. a coil spring surrounding each tubular member and having one endbearing against the bottom plate and its other end engaging th-e washerand a strap connecting the upper ends of each row of rods together.

ALBERT F. RADERS.

